nslookup -q=srv _autodiscover._tcp.webmail46.fr

Server: 10.1.1.1
Address: 10.1.1.1#53

Non-authoritative answer:
_autodiscover._tcp.webmail46.fr service = 0 0 443 autodiscover.webmail46.fr.

Authoritative answers can be found from:

ou

nslookup
set q=srv
_autodiscover._tcp.tailspintoys.ca